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| Started by | Jeff Vander Stoep <jeffv@google.com> |
|---|---|
| First post | 2015-08-18 22:00 +0200 |
| Last post | 2015-08-19 11:20 +0200 |
| Articles | 2 — 2 participants |
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[PATCH v2] arm64 Kconfig: Move LIST_POISON to a safe value Jeff Vander Stoep <jeffv@google.com> - 2015-08-18 22:00 +0200
Re: [PATCH v2] arm64 Kconfig: Move LIST_POISON to a safe value Catalin Marinas <catalin.marinas@arm.com> - 2015-08-19 11:20 +0200
| From | Jeff Vander Stoep <jeffv@google.com> |
|---|---|
| Date | 2015-08-18 22:00 +0200 |
| Subject | [PATCH v2] arm64 Kconfig: Move LIST_POISON to a safe value |
| Message-ID | <pYVd8-7KG-23@gated-at.bofh.it> |
Move the poison pointer offset to 0xdead000000000000, a recognized value that is not mappable by user-space exploits. Signed-off-by: Thierry Strudel <tstrudel@google.com> Signed-off-by: Jeff Vander Stoep <jeffv@google.com> --- v2 removes an extra newline. arch/arm64/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 318175f..8f1789c 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -104,6 +104,10 @@ config NO_IOPORT_MAP config STACKTRACE_SUPPORT def_bool y +config ILLEGAL_POINTER_VALUE + hex + default 0xdead000000000000 + config LOCKDEP_SUPPORT def_bool y -- 2.5.0.276.gf5e568e -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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| From | Catalin Marinas <catalin.marinas@arm.com> |
|---|---|
| Date | 2015-08-19 11:20 +0200 |
| Message-ID | <pZ7Hk-1AV-21@gated-at.bofh.it> |
| In reply to | #1209455 |
On Tue, Aug 18, 2015 at 12:50:10PM -0700, Jeff Vander Stoep wrote: > Move the poison pointer offset to 0xdead000000000000, a > recognized value that is not mappable by user-space exploits. > > Signed-off-by: Thierry Strudel <tstrudel@google.com> > Signed-off-by: Jeff Vander Stoep <jeffv@google.com> > --- Acked-by: Catalin Marinas <catalin.marinas@arm.com> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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